Improvement in planing and matching machine



G. .W. PASSEL 81G. W. DUANE."

Planingand MatohingMachine.

Pate nted Sept. 16, 1879.

No. 219,65ij

PETERS. FHOTO-U'KNOGRAPNER, WASHXNGTON. D C,

UNITED STATES PATENT OFFICE.

GEORGE W. PASSEL AND WILLIAM H. DOANE, OF CINCINNATI, OHIO,

ASSIGNORS TO J. A. FAY 85 00., OF SAME PLACE.

IMPROVEMENT IN PLANING AND MATCHING MACHINE.

Specification forming part of Letters Patent No. 219,651, datedSeptember 16, 1879; application filed February 21, 1879. r

reference being had to the accompanying drawin gs, and to letters ofreference marked thereon, which form a part of this specification.

This invention relates more especially to planing and matching machinesin which provision is made for lowering the matcher-heads below thesurface of the platen or bed, so that I the machine can be used either,in its duplex character or as a simple planing-machin e.

One feature of our improvement consists of a peculiar mechanism foradjusting-that is, elevating and loweringthe matcher-frame to move thematcher-heads into and out of working position. This mechanism consistsof a crank-shaft and links so devised that on elevatin g thewatcher-frame the crank-arms of said shaft arrange themselves verticallyunder and come in contact with the bottom of the matcher-frame, giving asolid support to the latter, and relieving the link-pins from strain.

Another feature of our improvement, one adapted for application to mostall machines operating with weighted feed-rolls, consists in connectingthe weighted ends of the levers by links to crank-arms of a transverserock-shaft, so that the levers must operate in unison, andwill maintainthe feed roll or rolls they are connected with in horizontal positions.a

In the annexed drawings, Figure 1 is a longitudinal section of so muchof a planing and matching machine as it seems necessary to show in orderto illustrate our invention. Fig. 2 is a sectional front or endelevation. Figs.

3 and 4 are detail views of detached parts.

.Ehe same letters of reference are used in all the figures in thedesignation of like parts.

The matcher-frame B of the machine is mounted in ways and between thesides of the main frame A, so that the matcher-head spindles C and Dwill be the proper distance from the planing-cylinder. (Not shown.) Thebearings of the, matcher-head spindles are seated or supported onahorizontal rail of the matcherframe, and are provided (one or both)with means for adjusting them laterally, as usual. The entirematcher-frame, with its appendages, is supported by the. shaft E, withthe crankarms F F of which said frame is connected by the links G G.

The crank-arms F are in line or in the same vertical planes with thelugs 11 of the matcherframe to which the links G are pivoted, and theend of the cranlearms and the bottom edge of said lugs are so formed,respectively, and so proportioned that when the crank-arms are turned upinto a vertical position they will touch the bottom edge of the lugs andact as props between the matcher-frame and the sh aft E. As thecrank-arms in their turned-up position receive the weight of thematcher-frame directly, the links G and the pivot-pins thereof are thenrelieved entirely from strain.

The shaft E is supported in bearings in the sides of the main frame. Oneend projects through the frame, and is provided with a ban dlever, H, bywhich the shaft may be turned to lowerandelevatethematcher-frame.Aspring latch pin, it, in the handle of the lever is adapted to shootinto a hole in the main frame and lock the lever when the matcher-framehas been elevated into working position.

The upper adjustable feed-roll, I, turns with.

its journals in boxes mounted to slideon standards and supported byscrew-spindles K, as usual. The lower ends of the screw-spindles K are,respectively, swiveled to elbow-links L, the lower ends of which arepivoted to levers M and M, respectively. The short arms of these leversare fulcrumed on stud-pins m on the sides of the main frame, while theirlong rearwardly-projecting arms carry adjustable weights N to bear thefeed-roll I down with the requisite amount of pressure. The long arms ofthese levers are connected by links 0 and O to crank-arms P and P of arock-shaft, Q, mounted on the main frame. Being thus connected, thelevers must always move in unison and raise or lower the feed-roll Iequally and simultaneously at both ends, so as to maintain itshorizontality. In consequence no provision requires to be made withrespect to the binding of the gearing for driving the feed-rolls, andone set of such gearing only will be required, instead of a set at eachend of the feed-rolls. Shaft Q is provided with a hand-lever, R, forrocking it to lift the weighted levers and feed-roll I when required.

It is obvious that the crank-arms P and 1? may be directly connected tothe weighted levers by fixed stud-pins playing in slots, in which casethe links 0 and 0 could be dispensed with.

What we claim as our invention, and desire to secure byLetters Patent,is-

1. The combination, substantially as before set forth, of thematcher-frame, the shaft pro-

